ethical obligation of humanity

...a tension between two “impulses.” Here again, fragmentary and allusive biblical materials were developed into more-comprehensive statements. The biblical word
yetzer, for example, means “plan,” that which is formed in human minds. In the two occurrences of the word in Genesis (6:5; 8:21), the plan or formation of the human mind is...

Talmudic doctrine of man

...and harmonious being. The duality of his nature was explained by the existence of a good and bad impulse, personified by two angels,
yetzer ha-ṭov (the good inclination) and
yetzer ha-raʿ (the evil inclination), which enter each man after birth. It is the duty of man to overcome his evil inclination, and it is for this that he is rewarded. Moreover, since there...